org/codehaus/griffon/runtime/core/DefaultArtifactManager.java

`DefaultArtifactManager.java`
`001 /* 002 * Copyright 2009-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017 package org.codehaus.griffon.runtime.core; 018 019 import griffon.core.ArtifactInfo; 020 import griffon.core.GriffonApplication; 021 import groovy.util.ConfigObject; 022 import groovy.util.ConfigSlurper; 023 import org.slf4j.Logger; 024 import org.slf4j.LoggerFactory; 025 026 import java.io.IOException; 027 import java.lang.reflect.Modifier; 028 import java.net.URL; 029 import java.util.*; 030 031 import static org.codehaus.griffon.runtime.util.GriffonApplicationHelper.loadClass; 032 033 /** 034 * Default implementation of {@code ArtifactManager}. 035 * 036 * @author Andres Almiray 037 * @since 0.9.2 038 */ 039 public class DefaultArtifactManager extends AbstractArtifactManager { 040 private static final Logger LOG = LoggerFactory.getLogger(DefaultArtifactManager.class); 041 042 public DefaultArtifactManager(GriffonApplication app) { 043 super(app); 044 } 045 046 protected Map<String, List<ArtifactInfo>> doLoadArtifactMetadata() { 047 Map<String, List<ArtifactInfo>> artifacts = new LinkedHashMap<String, List<ArtifactInfo>>(); 048 try { 049 Enumeration<URL> urls = getApp().getClass().getClassLoader().getResources("META-INF/griffon-artifacts.properties"); 050 ConfigSlurper slurper = new ConfigSlurper(); 051 while (urls.hasMoreElements()) { 052 processURL(urls.nextElement(), slurper, artifacts); 053 } 054 } catch (IOException e) { 055 throw new IllegalArgumentException(e); 056 } 057 058 return artifacts; 059 } 060 061 private void processURL(URL url, ConfigSlurper slurper, Map<String, List<ArtifactInfo>> artifacts) { 062 Properties p = new Properties(); 063 try { 064 p.load(url.openStream()); 065 } catch (IOException e) { 066 return; 067 } 068 069 ConfigObject config = slurper.parse(p); 070 if (LOG.isDebugEnabled()) { 071 LOG.debug("Loading artifact definitions from " + url); 072 } 073 074 for (Object key : config.keySet()) { 075 String type = key.toString(); 076 String classes = (String) config.get(type); 077 if (classes.startsWith("'") && classes.endsWith("'")) { 078 classes = classes.substring(1, classes.length() - 1); 079 } 080 String[] classNames = classes.split(","); 081 if (LOG.isDebugEnabled()) { 082 LOG.debug("Artifacts of type '" + type + "' = " + classNames.length); 083 } 084 085 List<ArtifactInfo> list = artifacts.get(type); 086 if (list == null) { 087 list = new ArrayList<ArtifactInfo>(); 088 artifacts.put(type, list); 089 } 090 091 for (String className : classNames) { 092 try { 093 Class clazz = loadClass(className); 094 if (Modifier.isAbstract(clazz.getModifiers())) continue; 095 ArtifactInfo info = new ArtifactInfo(clazz, type); 096 if (!list.contains(info)) list.add(info); 097 } catch (ClassNotFoundException e) { 098 throw new IllegalArgumentException(e); 099 } 100 } 101 } 102 } 103 }`